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Idha Kusumawati
Researcher at Airlangga University
Publications - 43
Citations - 435
Idha Kusumawati is an academic researcher from Airlangga University. The author has contributed to research in topics: Indole alkaloid & Chemistry. The author has an hindex of 10, co-authored 41 publications receiving 353 citations. Previous affiliations of Idha Kusumawati include Hoshi University.
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Book ChapterDOI
Natural Antioxidants in Cosmetics
TL;DR: Many cosmetics that are marketed nowadays often contain antioxidants as the active ingredients, such as polyphenols, flavonoids, flavanols, stilbens, and terpenes as discussed by the authors.
Journal ArticleDOI
Alstiphyllanines E-H, picraline and ajmaline-type alkaloids from Alstonia macrophylla inhibiting sodium glucose cotransporter.
Hiroko Arai,Yusuke Hirasawa,Abdul Rahman,Idha Kusumawati,Noor Cholies Zaini,Seizo Sato,Chihiro Aoyama,Jiro Takeo,Hiroshi Morita +8 more
TL;DR: Structures and stereochemistry of alstiphyllanines E-G and H were fully elucidated and characterized by 2D NMR analysis, suggesting that the presence of an ester side chain at C-17 may be important to show SGLT inhibitory activity.
Journal ArticleDOI
Alasmontamine A, A first tetrakis monoterpene indole alkaloid from Tabernaemontana elegans.
Yusuke Hirasawa,Saori Miyama,Takahiro Hosoya,Koichiro Koyama,Abdul Rahman,Idha Kusumawati,Noor Cholies Zaini,Hiroshi Morita +7 more
TL;DR: A novel tetrakis monoterpene indole alkaloid, alasmontamine A, consisting of bis-vobtusine-type skeletons, was isolated from the leaves of Tabernaemontana elegans and exhibited moderate cell growth inhibitory activity against HL-60 cells.
Journal ArticleDOI
Biscarpamontamines A and B, an aspidosperma-iboga bisindole alkaloid and an aspidosperma-aspidosperma bisindole alkaloid, from Tabernaemontana sphaerocarpa.
Kazumasa Zaima,Tomoko Hirata,Takahiro Hosoya,Yusuke Hirasawa,Koichiro Koyama,Abdul Rahman,Idha Kusumawati,Noor Cholies Zaini,Motoo Shiro,Hiroshi Morita +9 more
TL;DR: Two new bisindole alkaloids, biscarpamontamine A and B, being isolated from stems of Tabernaemontana sphaerocarpa, showed potent cytotoxicity against various human cancer cell lines and their structures were elucidated on the basis of spectroscopic data analysis.
Journal Article
Alasmontamine A, a first tetrakis monoterpene indole alkaloid from Tabernaemontana elegans
Yusuke Hirasawa,Saori Miyama,Takahiro Hosoya,Koichiro Koyama,Abdul Rahman,Idha Kusumawati,Noor Cholies Zaini,Hiroshi Morita +7 more
TL;DR: A tetrakis monoterpene indole alkaloid, alasmontamine A (1) consisting of bis-vobtusine-type skeletons, was isolated from the leaves of Tabernaemontana elegans.